Mattress cover



FIG. 1 is a first perspective view of a mattress cover design;

FIG. 2 is a front elevational view of the mattress cover design of FIG. 1;

FIG. 3 is a rear elevational view of the mattress cover design of FIG. 1;

FIG. 4 is a right side elevational view of the mattress cover design of FIG. 1;

FIG. 5 is a left side elevational view of the mattress cover design of FIG. 1;

FIG. 6 is a top view of the mattress cover design of FIG. 1; and,

FIG. 7 is a bottom view of the mattress cover design of FIG. 1.

The broken line disclosure represents unclaimed portions of the mattress cover in which the design is embodied. 

CLAIM The ornamental design for a mattress cover, as shown and described. 